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Electronics Engineering
Electronics Engineering is a branch of engineering that deals with practical applications of electronic components, devices, systems, or equipment. Electronics are devices that operate on low voltage sources, as in electron tubes, transistors, integrated circuits, and printed circuit boards and use electricity as part of its driving force.
24,372 Questions
A signal pattern refers to a recognizable sequence or arrangement of signals that convey information or represent specific phenomena. These patterns can occur in various contexts, such as in communication systems, biological signals, or data analysis, where they help identify trends, anomalies, or behaviors. Analyzing signal patterns is essential for understanding underlying processes and making predictions based on the data.
R = r*L/A
where:
R = resistance
r = material resistivity
L = length
A = area
Since you are doubling the diameter, you are increasing the area by a factor of 4, so Y will have 1/4 the resistance of X.
When does the diode not allowed to flow the current?
A diode is a one-way gate for electrical current to flow through. You must have the right size diode for the amount of current that will be used in your circuit.
The stripe on the diode is your output end. That is, the current must enter your diode at the non-stripe end and leave at the end with the stripe. This coincides with the diode symbol used on your schematic. If your diode is in backwards, the circuit will not work as the gate in the diode will block the current just the way it should.
Given twelve 1 KOhm resistors, connected in the shape of a cube, in order to determine the net resistance between opposite corners, first draw the cube in two dimensions. (Try this at each step before continuing, so you can understand the lesson as it unfolds.)
There are three resistors leaving the initial vertex, and three resistors entering the final vertex. In between those six resistors, are six more resistors, each pair connected together on one end, and to two other resistors on the other end.
If every resistor has the same value, then (by symmetry), the voltage on the ends of the first three resistors must be the same. Similarly, the voltage on the ends of the last three resistors must be the same.
If two points in a circuit have the same voltage, then (for purposes of analysis) you can consider them to be shorted together. That short does not change the results, as there is no current flowing through that short.
With the bottom ends of the first three resistors shorted, and with the top ends of the last three resistors shorted, the circuit degrades into three resistors in parallel, in series with six more resistors in parallel, in series with three more resistors in parallel.
Three 1 KOhm resistors in parallel have a net resistance of 333 ohms. Six have a net resistance of 167 ohms. Two 333 ohm resistors and one 167 ohm resistor in series have a net resistance of 833 ohms, or 5/6 of 1 KOhms.
Note: This technique does not work if the resistors are not all the same value. In that case, you would need to solve 12 equations in 12 unknowns, looking at the partial currents in each branch.
Is it possible for a gate output to receive current from other sources?
Yes. You can use an open collector design, and you simply need a pull-up resistor to make it work. You can also use a tri-state design, and you simply need to make sure that only one gate is turned on at a time. These techniques are useful in bus design, where there is more than one sender, but only one is turned on at a time.
What is the difference between a positive limiter and a negative limiter?
The polarity at which it limits a waveform.
What is input impedance of fet amplifier?
Zin=Vds/Id [Vds=drain to source voltage ; Id = drain current]
How does quadrature amplitude modulation works?
QAM is a combination of phase modulation & amplitude modulation.
How snubber circuit connected across igbt?
A snubber circuit is typically connected across an IGBT (Insulated Gate Bipolar Transistor) to protect it from voltage transients and reduce voltage spikes during switching events. It usually consists of a resistor and a capacitor in series (RC snubber) or a diode-capacitor combination for diode snubbing. The snubber absorbs excessive energy, minimizing the risk of damage to the IGBT and improving overall performance by smoothing out the voltage waveform. Proper design of the snubber is crucial to effectively dampen oscillations and ensure reliable operation.
What is the meaning of signal ahead?
"Signal ahead" typically refers to a warning or indication that a signal, such as a traffic light or railway signal, is approaching. It alerts drivers or travelers to prepare for a change in conditions, such as stopping or adjusting their speed. This phrase is often used in transportation contexts to enhance safety and ensure that individuals are aware of upcoming signals that may require their attention.
What occurs if high resistance joint was left?
The chances are that the resistance will increase, so that in the end there will be no conduction through the joint at all .
What will happen if you connect identical integrated circuits in series?
Connecting integrated circuits is not the same as the much simpler cases of resistors, capacitors, inductors, motors, light bulbs, etc.
Integrated circuits have designated functions, and they operate in concert with the surrounding circuit design. As such, the idea of "connecting identical integrated circuits in series" has no meaning in the general case. You would need to state what kind of integrated circuit is involved.
1,000 ohms and 3,000 ohms in series = total effective resistance is (1,000 + 3,000) = 4,000 ohms.
Power dissipated = I2 R.
I = sqrt( P / R ) = sqrt (.025/4,000) = sqrt(6.25 x 10-6) = 0.0025 A
Voltage drop = I R
Across 1,000 ohms, V = 1,000 I = (1,000 x 0.0025)
= 2.5 volts.
What is the total voltage for R1 20 ohms R2 30 ohms and R3 18 ohms?
As you have not supplied any information, other than the resistance of the individual resistors, there is no way in which your question can be answered.
What properties of semiconductors make them useful in electronic devices?
Any good conductor is has some power loss while it was conducting if we get superconductor at normal temperature state we can send the electricity for a long distance without power loss there we can minimize the usage of semiconductor
Where are periodic signals used?
A periodic signal is a signal that repeats itself over a fixed period of time such as a sinusoidal, square, triangular or sawtooth waveform. So, basically they are used in almost every application of electrical engineering. These periodic waveforms, are also responsible for driving oscillators which is very important in computer applications where a CPU may need to operate according to the clock speed that is determined by the oscillator.
